AD7142ACPZ-500RL7集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

AD7142ACPZ-500RL7屬于集成電路（IC）的ADC/DAC-特殊用途。由亞德諾半導體技術有限公司制造生產的AD7142ACPZ-500RL7ADC/DAC - 特殊用途該產品族中的產品可用于模擬和數字表示的信息轉換，適用于特定用例，或集成了通用數據轉換器中不常見的其他功能。例如針對超聲或汽車雷達應用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

GENERAL DESCRIPTION

The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as capacitive buttons, scroll bars, or wheels.

FEATURES

Programmable capacitance-to-digital converter

36 ms update rate (@ maximum sequence length)

Better than 1 fF resolution

14 capacitance sensor input channels

No external RC tuning components required

Automatic conversion sequencer

On-chip automatic calibration logic

Automatic compensation for environmental changes

Automatic adaptive threshold and sensitivity levels

On-chip RAM to store calibration data

SPI?-compatible serial interface (AD7142)

I2C?-compatible serial interface (AD7142-1)

Separate VDRIVE level for serial interface

Interrupt output and GPIO

32-lead, 5 mm x 5 mm LFCSP_VQ

2.6 V to 3.6 V supply voltage

Low operating current

Full power mode: less than 1 mA

Low power mode: 50 μA

APPLICATIONS

Personal music and multimedia players

Cell phones

Digital still cameras

Smart hand-held devices

Television, A/V, and remote controls

Gaming consoles